ABB S800 I/O Manual page 51

Section 3 Configuration
The values in brackets are in Extended HART mode and HCIR.
In order to find out if a given configuration of analog and digital modules can be
used the following method should be used:
•
•
•
•
3BSE020926-600
Table 12. Maximum Number of Modules on CI840 (Continued)
Module Type
DO801, DO810, DO814
DO802, DO815, DO820,
DO821
DO818
DO828
DO840
DP820
DP840
(1) Not supported by AC 800M
Fill in number of modules in
Calculate the sum in the three columns:
– Sum User Parameters.
– Sum Input Bytes.
– Sum Output Bytes.
Calculate the three total sums for:
– ParamSize.
– InSize.
– OutSize.
Check that:
– ParamSize is less than or equal to 221 (220 if HCIR is used) in normal
mode, 218 (217 if HCIR is used) in Extended HART mode.
Number of Modules
22 (21)
24 (24)
13 (13)
22 (21)
20 (19)
8 (6)
7 (5)
Table 13.
CI840 Configuration Rules
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